An ocean may roar.Logical formLearned from15 sentences. An engine may roar into life.Logical formLearned from15 sentences. A crowd may roar an appreciation.Logical formLearned from15 sentences. A deity may roar.Logical formLearned from14 sentences. Jets may roar.Logical formLearned from14 sentences. An engine may be roared to life.Logical formLearned from14 sentences. Some fans may roar approval.Logical formLearned from14 sentences. A jet may roar.Logical formLearned from14 sentences. A sports-celebrity may roar.Logical formLearned from14 sentences. A plane may roar.Logical formLearned from14 sentences. Persons may roar.Logical formLearned from14 sentences. Economic growth may roar at a rate.Logical formLearned from14 sentences. A cyclone may roar.Logical formLearned from14 sentences. Aircraft may roar.Logical formLearned from14 sentences. Winds may roar.Logical formLearned from14 sentences.